gca behaves different in 2014b

Hello, Let assume there is already a figure open (like a GUI). Before 2014b with gca the handle number returned. Now with gca a new figure will open.

How could I get the current handle of a figure back?

In my special case, I try to get access to a certain axes of an existing figure. Any help avialable?

Thanks!

[Geoff Hayes]

Christian - in your scenario, what does the following return

 fig = get(groot,'CurrentFigure');
 if ~isempty(fig)
   ax = fig.CurrentAxes;
 end

Does fig correspond to your GUI (or is it empty), and is ax the handle to one or more axes in the figure (or is it empty)?

[Christian Schultes]

It works so fine in prior releases, but in 2014b the results as shown:

>> isempty(get(groot,'CurrentFigure'))

ans =

     1

>>

[Christian Schultes]

I've got the answer. The settings of the GUI must be HandleVisibility = ON !!!

Answer 1

[Christian Schultes]

Always t

urn the HandleVisibility ON then the commands gca and gcf will work.

Answer 2

[David Barry]

Christian,

This seems to work fine. Are you sure you definitely have an axes in your figure? gca will only open a new figure with an axes in if you call it and one doesn't already exist.

Try the code below and see if returns 1

f = figure;
a = axes('Parent', f);
g = gca;
a == g

[Christian Schultes]

Hello David.

Yes I'm sure. But now I found the issue! Not sure why it did work in R2011b. See my own answer.